Draining-culvert.



UNITED sTATEs PATENT oEEIoE.l

JULIUS H. SCHLAFLY, OF CANTON, OHIO, ASSIGNOR TO THE CANTON CULVERT COMPANY, OF CANTON, OHIO, A CORPORATION OF OHIO.

D'RAINING-CULVERT.

Specification of Letters Patent.

Patented Jan. 3, 1911.

Application led January 4, 1910.1 Serial Nol 536,395.

To all whom 'it may concern:A

Be it known that I, JULrUs I-I. SCHLATLY,

a citizen .of the United States, residing at and well adapted to the purpose for whichl it is intended. I attain this object, and other objects readily apparent to those skilled in the art, by the construction illustrated in the accompanying drawing, in

- which- Figure 1 is a .perspectiveview of a draining culvert embodying my invented im-,

that portion of the culvert where longitudinally adjacent upper sections over-lap. Fig. 4 isa side elevation illustrating two upper sections and a lower section properly connected together and the flange of the lower section broken away to disclose the construction.

Throughout the several views similar numerals of reference indicate similar parts.

The numeral l indicates a bottom section, preferably formed with a plain, flat upper surface and having side or retaining flanges 2 along both longitudinal'edges. The numeral 3 indicates one of the upper sections while 3a indicates a similar section longitudinally adjacent to the section 3. Each upper section is preferably arched or curved and is provided along its longitudinal edges with the integral flan es 4. Circumferential corrugations extend rom the outer edge of the flange on one side to the' outer edge of extending not only throughout the arched portion of the section 'but through the flanges 4. The purpose of the corrugations in the arched portlon of the culvert is to strengthen the same and enable it to withstand the crushing pressure of the earth immediately above it, while the corrugations in the flanges 4 strengthen said flanges and provide a broad bearing to support the arched portion, the said flanges having less tendency to bend along the line of their attachment to the arched portion and in fact throughout their width by reason of the strengthening corrugations, and thus distribute the weight or pressure over a substantially larger surface. A further purpose of the circumferential corrugations 1s to conduct water to the draining apertures, as hereinafter described.

In erecting thevculvert lon itudinallyadjacent upper sections are overapped at thelr meetin ends one full corrugation, as .illustrated 1n Figs. 1 and 4 and bolts 5 or their equivalents are used for the purpose of connecting the upper sections to the lower sections. The apertures 6 in the flanges 4 are elongated transversely with respect to the culvert for the purpose of permitting ad]ust ment of the upper sections relative to the lower sections so as to bring the edges of the flanges 4 against the lianges of the lower sections as illustrated in Fig. 3` and also to permit of some slight adjustment of the u per and lower sections when either surroun ing groundor water within the culvertv itself is frozen.

In the arched portion of each upper section are arranged a number of dralningapertures 7, which apertures are preferably located in the externally concave surfaces Vformed by the circumferential corrugations to increase the draining efficiency. When water haspercolat'ed through the soil and come into Contact with the surface of one ofthe upper sections it will be directed along -said surface into the nearest concavecorrugation, whence it will flow circumferentially along the side of the section to the first aperture in lits pathway and .through said laperture into the interior of the culvert. In placing culverts of the character herein described it is desirable to provide a firm and smooth foundation for the low'er section-and to fill in around the top section a quantity of coarse gravel or broken stone to aid in the rapid draining of water from the surrounding soil to the surface of the upper sections, whenceit will be carried into the-interior of the culvert as just described.

It will be noted that while my draining culvert may be used to advantage in practically all places where an ordinary culvert might berv used, yet it is especially designed for draining fills on railways or in other placesvwhere it is desired to combine a means or conduetlng water with a means for draining the surrounding ground.

The culverts may be shipped in a knockeddown and nested condition and a culvert of any desired length may be formed by connecting up the necessary number of sections. Both upper and lower sections may be made in.any desired or convenient length, joints between longitudinally adjacent upper seetions being preferably arranged intermediate joints between longitudinally adjacent lower sections.

It will Ibe noted that by reason -of the transverse corrugations in the flanges 4 the said flanges do not lie fiat against .the lower section but contact with said section only where the corrugations in saidfianges are convex on the underside, as clearly ill-usn trated in Fig. 4. Intermediate each two sion or rusting of the meta-l.

points of contact is an air space 8 produced by the upwardly'convex corrugation, said air space permitting the rapid dryin of water from between the contacting suraces of the flanges 4 and the lower section and thus to a large extent preventing the rapid corro- Attention should also be called -to the fact that a oertain amount of water will enter the 'culvert j by coming in `contact with the upper surface of the flanges 4, following said surface to the edge of the flange and seeping downwardly between the flange 2 and the edge of the flange 4', whence .it will be readily conducted under the flange 4 to the interior of the `culvert through the spaces 8.

Thile I have illustrated and described the lupper sections asvarched I do not desire to be confined to that construction as it is evident that said sections might be formed of an inverted V-shape or otherwise and also other minor changes of form or detail might be made without departing from the spirit of the invention.

I claim 1. A sheet metal culvert section provided vwith circumferential corrugations and with draining apertures, substantially as and for the purpose specified.

2. A culvert section provided with cir- -with transverse corrugations presenting externally concave and convex portions and apertures located in the concave portions.

4. As an article of manufacture,a culvert section constructed of sheet metal, bent into arched form, and having draining apertures .in' its wall.`

5. As an article of manufacture, a culvert section constructed of sheet metal, bent into arched form,having circumferentlal corrugations, and draining apertures in the wall of said section.

6. .As an article of manufacture, a culvert section constructed of sheet metal bent into arched form, having circumferential corru-v gations, and draining apertures extending tures being located in the externally concave'portions of the section. v

7. An arched culvert section provided with integral flanges at its lateral edges, circumferential corrugations extending through said flanges, and draining apertures in 't e wall of the arched portion of the section.

8. An arched culvert section provided with integral anges at its lateral edges, .circumferential corru ations extending throu h said flanges, an draining apertures in tie wall of the arched portion of the section, said apertures being located in the externally concave portions of the corrugations.

9. In a culvert of the class described, a longitudinal series of sections adapted to be lapped longitudinally one upon the other at their meeting edges, and draining apertures in the walls of said sections.

10. In a culvert of the class described, a series of transversely corrugated sections adapted to be lapped longitudinally one upon the other at their meeting edges, said sections having. apertures located in the externally concave portions of their walls.

11. A sheet metalvculvert comprising an upper and a lower section, the upper section bent into arched form and having draining apertures in its wall, the lower section pro- .vided with a plain upper surface and side bent into arched form, provided with circumferential corrugations, and-having. draining apertures in its wall, the. lowerl section provided with a plain upper surface and side flanges along its longitudinal edges, and the said upper. sectionv arranged upon said lower section between the side flanges thereof.

13. A sheet metal culvert comprisingan.

upper and a lower section, the upper section bent into .arched form, provided; with circumferential corrugations, and lat-eral flanges, and having draining apertures in its wall, the lower section provided with a plain upper surface and side flanges along both longitudinal edges, and the said upper section arranged upon said lower section between the side flanges thereof.

14. A sheet metal culvert comprising an upper and a lower section, the upper section bent into'arched form, provided with 'circumferential corrugations, and having draining apertures in its wall, said apertures located in the externally concave portions of the corrugations, the lower .section provided with a plain upper surface and having side flanges along its longitudinal edges, and the said upper section arranged upon said lower section between the side flanges thereof. l

15. A sheet metal culvert comprising `an upper and a lower section, the upper section bent into arched form and provided with .circumferential corrugations and integral lateral flanges, the circumferential corrugations extending through said flanges, said upper section having draining apertures in its wall, the lower-section provided with a plain upper surface and side flanges and the upper section arranged upon the lower section between the side flanges thereof.

16. A sheet metal culvert comprising an upper and a lower section, the upper section bent into arched form and provided with circumferential corrugations and integral lateral flanges, the circumferential corruga tions extending through said flanges, said upper section having draining apertures in .its wall, said apertures located in the externally concave portions of the corrugations, the lower section provided with a plain upper surface and side flanges, and the said4 upper 'section arranged upon said lower section between the side flanges thereof.

17. A culvert comprising an upper and a lower section, theA up er section provided with lateral, corrugated) flanges, and the upper section arranged upon said lower section, said corru/gated flanges resting upon the plain upper surface of said lower section.

18.In a culvert two sheet metal sections joined to each other, one of said sections provided with a corrugated flange and the other sectiony provided with a plain surface, and the corrugated flange o the one section resting. upon the plain surface of the other section, whereby air spaces are produced adjacent the contact-ing portions of the two sections.

19. A culvert comprising an upper arched section and a lower plain section, the upper arched section provided with lateral cor-A rugated flanges adapted to rest upon the plain upper surface of said lower section,

and means for'fastening said sect-ions together.

20. A sheet metal culvert comprising an upper and a lower section, the upper 'section provided with an arched portion and integral lateral flanges, circumferential lcorrugations extending through said flanges and arched portion, said arched portion provided with draining apertures located in the externally concaveportions 'of the corrugations, and said upper section arranged upon extending through said arched portion and the integral flanges, a lower plain section extending under said lateral flanges and said flanges resting upon said lower section.

23. `A culvert comprising an upper section having an arched, circumferentially corrugated portion, and integral lateral flanges extending outwardly from the bases of said arched portion, a lower plain section extending under said lateral flanges and said flanges resting upon said lower section.

24. A sheet metal culvert comprising upper sections provided .with draining apertures and lower sections provided with plain upper surfaces, said upper sections arranged upon said lower sections.

v25. In a culvert a longitudinall series of upper sections provided with draining apertures and a longitudinal series of lower sections, said upper series of sections arranged upon said lower series of sections.

` 26. In a vculvert a longitudinal series of upper sections provided with draining apertures and a longitudinal series of lower sections provided with plain upper surfaces,

said upper series of sections arranged upon said lower series of sections.-

- 27 A sheet metal culvert comprisingan upper anda lower seotion; the upper section 5 bent into arched form and provided with lateral flanges, the lower section provided witha plain upper surface and side flanges along its.. long1tudina1 edges, andthe upper section arranged upon said lower seo- A 10 tion between the side flanges thereof, with the lateral flanges of the upper section resting upon the plainA upperl surface` of the lower section. p

In testimony that I claim the above, I have hereunto subscribed my name in the 15 presence of two witnesses. o JULIUS H. SCHLAFLY. Witnesses:

C. A. IMRIE,

CEAS. W. KRIEG. 

